1C51:
reference: Photosystem I, an improved model of the stromal subunits PsaC, PsaD, and PsaE., Klukas O, Schubert WD, Jordan P, Krauss N, Fromme P, Witt HT, Saenger W, J Biol Chem 1999 Mar 12;274(11):7351-60. PMID: 10066799

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